%0 Journal Article %A JMS Pearce %T Early descriptions of cluster headache %D 1989 %R 10.1136/jnnp.52.4.466 %J Journal of Neurology, Neurosurgery & Psychiatry %P 466-466 %V 52 %N 4 %U https://jnnp.bmj.com/content/jnnp/52/4/466.full.pdf